RE: CP2 flying problems
Have you tried adjusting the gain and mixer pots on 4-in-1?
Which direction does it spin. If it spins clockwise, then you have to turn down the mixer slowly until it doesn't. If it spins counter-clockwise, then you need to turn up the mixer. Decrease the gyro if the tail wags back and forth.
As for the heli tipping over, center the cyclic trims on the tx first then adjust the servo links to swash so it is levelled. Then you can trim it more precisely with the tx.
Awais